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71 Cards in this Set
- Front
- Back
The engine cowling does all the following except ____.
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secures the engine to the frame
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The purpose of the inertial separator is to _____.
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Keep debris away from the engine
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The compressor and power turbines are physically connectrd.True or False.
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False
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What three elements are necessary for engine operation?
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1. Air
2. fuel 3. Heat |
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True or False. As exhaust is released, additional thrust is provided.
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True.
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True or False. Once the engine is started and the ignition switch is in the ON position, igniters are automatically energized and de-energized by the PMU.
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False
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The primary purpose of the ignition system is to ___.
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ignite the air and fuel mixture in the combustion chamber
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Tru or False. Friction control settings made to the front PCL affect the aft PCL.
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True
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When starting the T-6A, the PCL should be _______.
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pushed forward until a green ST READY annunciator is illuminated
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The PMU is located ____.
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underneath the engine, in the accessory compartment.
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The PMU performs the following functions, except:
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releases the correct amount of fuel
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The PMU STATUS annunciator illuminates after landing when the PMU ___.
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needs maintenance
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After engine start, the starter becomes a generator. True or False.
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True
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True or False. The MANUAL starter switch position will be used under normal circumstances.
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False
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For aircraft NOT modified by TCTO IT-6T-554/TD AVC-5266, with the engineabove IDLE power a red OIL PX annunciator illuminates when oil pressure falls below ____ psi.
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40
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For aircraft modified by TCTO 1T-6A-554/TD AVC-5266, if oil pressure remains between 15 and 40 psi at IDLE power for more than 5 seconds, _____ will be illuminated.
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both the amber and red OIL PX annunciators
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The chip detector sensor is located _____.
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in the reduction gearbox
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The oil system provides filtered oil to all of the following systems, EXCEPT ______.
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wheel brakes
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The reduction gearbox reduces engine output from _____ RPM to propeller speeds of _____RPM.
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30,000; 2000
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The phase shift torque probe monitors _______.
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propeller speed
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The PIU ____.
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regulates oil pressure to the pitch change mechanism.
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If the propeller pitch change mechanism loses oil pressure, the propeller will automatically move towards the _____position.
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feathered
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Varying levels of thrust are achieved by ______.
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changing propeller pitch
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The PMU ____.
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keeps the engine and propeller within operating limits.
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If the oil filter gets clogged ____.
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the system uses unfiltered oil
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In straight-and-level flight, for PCL positions above IDLE, oil pressure should be maintained between ____ and _____.
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90; 120 psi
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The phase shift torque probe is located _____.
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in the reduction gearbox.
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Propeller pitch refers to _____.
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the angle of the propeller blades
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Which propeller position produces the least amount of drag?
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Feather
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The propeller picth change mechanism is able to change propeller blade angel by ____.
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oil pressure
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The PMU directs the PIU to maintain propeller RPM at ____.
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2000
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The power turbine is driven by _____.
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expanding gases
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During aerobatic flight, oil pressure should be maintained at or above _____.
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40 psi
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True or False. All of the functions performed by the engine data manager (EDM) are engine related
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False
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The EDM is located _____.
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in the left avoinics bay
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True or False. All primary engine data is processed by the PMU prior to being displayed.
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True.
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In the event of abnormal engine operation, the primary engine data diplays will warn the pilot by _____.
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changing color
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In order to prevent possible damage due to ground resonance, what is the Np stabilized operation prohibited range while on the ground?
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62-80%
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True or False. All data provided to th ealternate engine data display is first processed by th PMU.
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False
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On the alternate engine data displays, /\P measures ____.
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the difference between cockpit pressure and outside pressure
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The engine/systems/NACWS displays provide ______.
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oil temp., oip pressure, hydraulic pressure, NACWS traffic alerts, DC volts and DC amps
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To view the NACWS diplay, _____.
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depress the trigger swtich on the control stick to the second detent
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True or False. Shutoff valves activated by the Firewall Shutoff Handle may be reset by pushing handle back in.
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True
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When testing the intregrity of th fire warning system, you will know the system is working properly if ______ and teh aural tone sounds.
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the FIRE and MASTER WARN annunciators illuminate
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The engine data manger does not _____.
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control all electronic displays in the cockpit
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The primary engine data displays system _______.
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provides each cockpit with a visual indicatin of engine operations
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The engine data manager is located ______.
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in the left avionics bay
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True or False. The alternate engine data display serves as a backup to the primary engine data displays, and therefore display some of the same data
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True
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The primary enging data display provides _____.
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torque,ITT, N1 NP and IOAT
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The engine/system/NACWS display does not ______.
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diplay outside environmental conditions in each cockpit
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True or False. All data presented on the alternate engine data display is processed by the PMU.
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False.
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The FIRE switch located in the front cockpit is used to _____.
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test the integrity of fire waring system
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What three elements are necessary for engine operations?
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Air, fuel, and heat
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Given indications of abnormal start, what should you do?
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Begin abort start procedure
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What are the types of abnormal start?
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Hot, hung, no start
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What are the indications of a hot start?
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High/rapidly rising ITT, lower N1, lower Np
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What are the indications of a hung start?
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Slow rising ITT,lower N1, lower Np
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What are the indications of no start?
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No ITT indication, lower N1, no Np indication, no torque indication
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What are some possible displays indications of engine failure in-flight?
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A. Initail indications: Loss of power and airspeed; rapid decay of N1, torque, and ITT; MASTER WARN Lights and tone; propeller moves towards feather
B. Accompanyiny indications: Rapidly decreasing ITT, Np; lower than normal oil pressur; engine noise; GEN, FUEL PX, OIL PX, OBOGS FAIL annunciators; Possibly PMU FAIL and CKPT ALT annunciators |
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What are the indications of PMU failure?
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Power step change, PMU FAIL annunciator MASTER WARN light, aural tone
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What are teh indications of uncommanded propeller feather?
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Rapid loss of power, high torque, lower Np, possible PMU FAIL/PMU STATUS annunciators, engine/airframe vibration, engine noise
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What are some sensory indications of engine fire in-flight?
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See smoke or flames, smell oil burning, hear unusal sounds, feel engine vibration or roughness
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The power turbine is driven by _____.
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expanding gases
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What does FEVER stand for?
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Fluctuating oil pressure, oil temp. or hydraulic pressure,
Excessive turbine temp. Visual indications(smoke), Erratic engine operation Roughness or vibration |
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What are the three engine sections?
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Accessory compartment, gas generation section, and power turbine section
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What unctions are performed by the PMU?
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Maintaining operating limits, process power requests, control engine and propeller, provide near linear power response
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What is the purpose of PIU?
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Regulate oil pressure to the pitch change mechanism
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What are possible causes of engine failure in-flight?
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Fuel starvation, mechanical failure, compressor stall
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What are the engine fire warning indicators?
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FEVER, FIRE annunciator, MASTER WARNING light, aural tone
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What are some possible causes of uncommanded power loss?
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Enging rollback due to PMU scheduling, Oil/engine/fuel system contamination
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What are some possible indications of engine fire in-flight that may be seen on the engine displays?
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High ITT; Fluctuating; oil temp and pressure, hydraulic pressure.
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